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Diffstat (limited to 'crates/ide-diagnostics/src/handlers/macro_error.rs')
| -rw-r--r-- | crates/ide-diagnostics/src/handlers/macro_error.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/crates/ide-diagnostics/src/handlers/macro_error.rs b/crates/ide-diagnostics/src/handlers/macro_error.rs index 870c78d1f1..7547779a95 100644 --- a/crates/ide-diagnostics/src/handlers/macro_error.rs +++ b/crates/ide-diagnostics/src/handlers/macro_error.rs @@ -9,6 +9,16 @@ pub(crate) fn macro_error(ctx: &DiagnosticsContext<'_>, d: &hir::MacroError) -> Diagnostic::new("macro-error", d.message.clone(), display_range).experimental() } +// Diagnostic: macro-error +// +// This diagnostic is shown for macro expansion errors. +pub(crate) fn macro_def_error(ctx: &DiagnosticsContext<'_>, d: &hir::MacroDefError) -> Diagnostic { + // Use more accurate position if available. + let display_range = + ctx.resolve_precise_location(&d.node.clone().map(|it| it.syntax_node_ptr()), d.name); + Diagnostic::new("macro-def-error", d.message.clone(), display_range).experimental() +} + #[cfg(test)] mod tests { use crate::{ @@ -188,6 +198,7 @@ fn f() { "#, ); } + #[test] fn dollar_crate_in_builtin_macro() { check_diagnostics( @@ -212,4 +223,38 @@ fn f() { "#, ) } + + #[test] + fn def_diagnostic() { + check_diagnostics( + r#" +macro_rules! foo { + //^^^ error: expected subtree + f => {}; +} + +fn f() { + foo!(); + //^^^ error: invalid macro definition: expected subtree + +} +"#, + ) + } + + #[test] + fn expansion_syntax_diagnostic() { + check_diagnostics( + r#" +macro_rules! foo { + () => { struct; }; +} + +fn f() { + foo!(); + //^^^ error: Syntax Error in Expansion: expected a name +} +"#, + ) + } } |